ON SOME NEW AND RARE BRITISH ARACHNIDA. 83 



Club, 1882-1905. Also List of British and Irish 

 Spiders, 1900 (published by Messrs. Sime and Co., 

 Dorchester, Dorset). 



PHALANGIDEA Monograph of British Phalangidea, Proc. 

 Dors. N.H. and A.F. Club, Vol. XL, 1890. 



CHERNETIDEA Monograph on the British species of Cherne- 

 tidea or False Scorpions, I.e., Vol. XIIL, 1892. 



NOTES AND DESCRIPTIONS OF SOME OF THE ABOVE. 



Episinus lugubris, Sim. Fig. 2. 



I have long suspected that under the name Episinus truncatus, 

 Walck., two species were mixed up among our British specimens. 

 A close examination of many examples both from Dorset and 

 other parts confirms this. The two species are very nearly allied, 

 and the same general remarks and description would apply fairly 

 to both, but, so far as my own observations go, the chief tangible 

 distinction is in the form of the palpi in the male ; the structure 

 of the palpal processes at their apex differs decidedly. (See 

 PI, A., Figs. 2, 3.) The general character which has been relied 

 upon for their separation that is, the larger size and darker hue 

 of E. lugulris I have not found reliable. It is true that the 

 largest and darkest specimen I have ever met with is undoubtedly 

 of this species ; but then I have others smaller than even the 

 general run of E. truncatus, and quite light coloured. 



E. truncatus, Walck. -Blackwall, has been recorded, I believe, 

 as containing one species only E. lugubris, Sim. There, how- 

 ever, is no doubt but that we have the two in Britain (truncatus, 

 Walck., and lugubris, Simon), and perhaps about equally 

 distributed. I have had types from Mons. Simon, for com- 

 parison in deciding which is Walckenaers' and which is Simon's 

 species. 



